JU-PTBSGRE: GRE Using Prefix Tree Based Structure Sibabrata Paladhi author Sivaji Bandyopadhyay author 2008-06 text Proceedings of the Fifth International Natural Language Generation Conference Michael White editor Crystal Nakatsu editor David McDonald editor Association for Computational Linguistics Salt Fork, Ohio, USA conference publication paladhi-bandyopadhyay-2008-ju https://aclanthology.org/W08-1139/ 2008-06 230 231